APA aipamena

Ekelund, R. B. (1990). A history of economic theory and method. New York: McGraw-Hill.

Chicago Style aipamena

Ekelund, Robert B. A History of Economic Theory and Method. New York: McGraw-Hill, 1990.

MLA aipamena

Ekelund, Robert B. A History of Economic Theory and Method. New York: McGraw-Hill, 1990.